CN111818288A - Multi-format video acquisition and storage system with storage card and video acquisition card separately designed - Google Patents
Multi-format video acquisition and storage system with storage card and video acquisition card separately designed Download PDFInfo
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- CN111818288A CN111818288A CN202010650472.7A CN202010650472A CN111818288A CN 111818288 A CN111818288 A CN 111818288A CN 202010650472 A CN202010650472 A CN 202010650472A CN 111818288 A CN111818288 A CN 111818288A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
- G06F3/0613—Improving I/O performance in relation to throughput
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
- G06F3/0631—Configuration or reconfiguration of storage systems by allocating resources to storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
Abstract
The invention discloses a multi-format video acquisition and storage system with a memory card and a video acquisition card which are designed separately. The case adopts a cold conduction structure, and the video capture card is fixed in the case and connected with an aviation connector on the case. The memory card is separated from the video capture card by adopting a pluggable design, and can be pulled out of the chassis to realize video data dump. The video acquisition card is based on the framework of FPGA + DSP + acquisition chip, adopts various video acquisition chips, and interface conversion and protocol conversion are accomplished in FPGA, and digital signal processing is accomplished in DSP. The invention adopts the design of a plurality of aviation connectors, and can meet the requirement of simultaneously inputting a plurality of paths of video data with different formats; the structure of the memory card is a cold conduction structure body, so that the capacity and the access rate are improved; the functions of collecting, compressing and storing data in various video formats are met; the requirement of destroying data in emergency is met; the structure meets the requirement of military industry on environmental adaptability.
Description
Technical Field
The invention belongs to the field of airborne application, relates to data acquisition and storage, and particularly relates to a multi-format video acquisition and storage system with a memory card and a video acquisition card which are designed separately.
Background
With the increasing battlefield reconnaissance missions and the diversification of reconnaissance video equipment types, a video acquisition and storage system compatible with various video formats and compression algorithms is urgently needed. And this system must meet military standardization requirements. The specific requirements are as follows:
1. the system needs to simultaneously meet the functions of collecting, compressing and storing data in various video formats;
2. the video interfaces are diversified to meet the access of different types of video data.
3. In a fierce battlefield environment, the data must support the destruction function in the event of an accident.
4. When the reconnaissance task is finished, the problem that a large amount of reconnaissance video data are dumped is also urgently needed to be solved, the existing reconnaissance equipment cannot well solve the separation design of the storage unit and the acquisition unit, and when the reconnaissance equipment needs to be dumped, the storage body is pulled out and taken away, so that the dumping can be realized.
5. The whole system must also meet the airborne and battlefield environments and meet the corresponding reinforcement requirements.
Some existing video acquisition and storage equipment in the current domestic and foreign markets can not meet the requirements, and the current situation is as follows:
1. a non-reinforced structure is adopted mostly, the requirement of an aerospace reinforced interface is not met, the aviation connector cannot be supported, and an aviation special interface is not supported;
2. in the small video acquisition equipment, the storage capacity is low and does not meet the requirement of TB-level storage capacity;
3. the number of supported video formats is small, and the requirement of simultaneous compatibility of multiple aviation video formats is not met;
4. the function of destroying the video data under special conditions is not provided;
5. the video acquisition board and the storage board are not separately designed, and the pluggable design is not supported;
6. the storage volume is not designed with a dual SATA interface combo.
Therefore, although there are many video capture and storage systems in the market, none of them meets the requirements of the application environment on board the aircraft, and different video capture and storage devices need to be used on different devices, and there is no commonality and uniform architecture.
Disclosure of Invention
Aiming at the defects in the prior art and aiming at solving the problem that the traditional video acquisition and storage system cannot meet the requirement of aviation onboard, the invention provides a multi-format video acquisition and storage system which is designed based on a storage card of an FPGA + DSP + acquisition chip and a video acquisition card in a separated mode.
The invention adopts a separated design of a storage card and a video acquisition card, the storage card supports a rapid plug-in design, and two 2.5-inch destruction functional solid SATA disks are adopted and structurally form a whole. The Ethernet is directly connected with a computer to watch the video; file systems divide files by volume and time, file names are sorted by time, etc. The video acquisition card is used for interface conversion and protocol conversion based on the FPGA, the DSP is used for data signal processing as a core processor of the system, and the interface is an aviation connector. The main components are based on domestic military grade or industrial grade products, and meet the requirements of military industry on environmental adaptability. The adopted specific technical scheme is as follows:
the system comprises a case, a video acquisition card, a memory card and video acquisition control software.
The case provides a physical carrier for the system, and the memory card can be pulled out of the case and separated from the video acquisition card to realize video data dump;
the video capture card is fixed in the case and connected with the aviation connector on the case. Two SATA interfaces output by the acquisition card are respectively in data exchange with 2 solid SATA storage disks, a 28V destruction power supply is designed on the acquisition card and is used for SATA disk destruction, the video acquisition is carried out by adopting a special chip, interface conversion and protocol conversion are completed in an FPGA, and digital signal processing is completed in a DSP. Video data adopts a shunting strategy, two camera link videos are respectively stored in different SATA disks, an HD-SDI video and a PAL video are also respectively stored in different SATA disks, and one gigabit Ethernet is used for video playback.
The storage card adopts 2 2.5 cun SATA disks (supporting double-pin destruction function), structurally integrates, outputs two standard SATA ports, and adopts a pluggable design. The drawn out memory card part can be connected with the SATA interface of the computer and can also be connected with the USB interface for transferring data through a SATA USB data line. The 2.5-inch SATA disk destroys and triggers NAND FLASH on the memory card to be physically destroyed through the single-chip microcomputer controlling the 28V power-on sequence and the power-on pulse, the 28V destroying power supply adopts a special destroying power supply and is isolated from a working power supply, and meanwhile, the 2.5-inch SATA disk also supports the intelligent destroying function, namely, all data are erased by one key.
The data erasing also adopts a one-key erasing technology, each SATA interface connector P6 pin of the memory card is provided with an input pin, when the pin is pulled down for 1 second, the pin is considered to receive a destroying command, all data in the memory particles are erased after the destroying command is received, and the destroying time is less than 10 seconds. A mechanical switch, an OC or OD (open collector or open drain) circuit is used as a Quick Erase function trigger interface outside the video acquisition and storage system. In the destruction function design, the function keys are all on the video acquisition card, the video acquisition storage system adopts 2 SATA disks, the destruction pin wires of the 2 disks and GPIO of the FPGA end of the video acquisition card are connected with the input end of an AND gate chip, and the output end of the AND gate chip is connected with an NPN type triode for FLASH full-erase control. And the FPGA control is adopted to prevent the false erasure.
Because this patent video acquisition system structure is small and exquisite, so the storage card has adopted the cold plate handle of leading that a singlehanded can be held between fingers and get, when holding between the fingers two buttons in the middle with middle, the fixed cold plate buckle of leading is loosened, and the storage card just can take out.
The video acquisition control software runs on the video acquisition card. The software can perform interface conversion on the video, control video dump and related operations of the system, such as video playback and file system management. The recording data file name contains UTC time (time is taken in the transmitted data, and when the time is not received, a default value is taken).
The claimed technical scheme is as follows:
a multi-format video acquisition storage system with a storage card and a video acquisition card separately designed comprises a case, the video acquisition card and the storage card, and is characterized in that:
the case provides a physical carrier for the system, a cold conduction structure is adopted, and the video capture card is fixed in the case and connected with an aviation connector on the case;
the storage card adopts at least 2 SATA disks which are structurally integrated, adopts a cold guiding structure, adopts a cold guiding plate handle which can be pinched by a single hand, outputs at least two standard SATA ports, adopts a pluggable design to be separated from the video acquisition card, and can be pulled out from a chassis to realize video data dump;
the SATA disk has a destroying function, the destroying triggering controls the power-on sequence and the power-on pulse physical destroying of data on the memory card through the single chip microcomputer, and the destroying power supply adopts a special destroying power supply and is isolated from the working power supply;
the video acquisition card is based on the framework of FPGA + DSP + acquisition chip, various video acquisition chips are adopted, interface conversion and protocol conversion are completed in the FPGA, digital signal processing is completed in the DSP, at least two paths of SATA interfaces are output by the video acquisition card to respectively perform data exchange with at least 2 SATA storage disks, and a destruction power supply is designed on the video acquisition card and is used for the SATA disks to be destroyed; video data adopts a shunting strategy, and videos are respectively stored in different SATA disks.
Further, adopt 2 piece at least SATA dishes, wherein SATA dish is 2.5 cun SATA dish.
Further, adopt the cold board handle that leads that one hand can be got, wherein be provided with in the middle of the handle and get the button.
Further, the SATA disk has an intelligent destruction function at the same time, namely, all data are erased by one key; each SATA interface connector on the memory card is provided with an input pin, when the pin is pulled down for a certain time, the pin is considered to receive a destruction command, and all data in the memory particles are erased after the destruction command is received.
Further, the pin is pulled down for a certain time, wherein the certain time is 1 second.
Furthermore, a mechanical switch and an open collector or open drain circuit are arranged outside the video acquisition and storage system and serve as a data destruction function trigger interface; in the destruction function design, the function keys are all arranged on the video acquisition card, the destruction pin wire of the SATA disk and the GPIO of the FPGA end of the video acquisition card are connected with the input end of the AND gate chip, the output end of the AND gate chip is connected with the NPN triode to carry out FLASH full-erasing control, and the FPGA control is adopted to prevent mistaken erasing.
Furthermore, two camera link videos are respectively stored in different SATA disks, an HD-SDI video and a PAL video are also respectively stored in different SATA disks, and one path of gigabit Ethernet is used for video playback.
Further, a destruction power supply is designed on the video capture card, wherein the destruction power supply is a 28V destruction power supply.
Furthermore, the video acquisition card runs with video acquisition control software, and the software is used for operating and controlling video interface conversion, video dump and system.
In summary, the technique of the present invention is as follows:
1. the whole system adopts the design of a miniaturized reinforced cold guide structure, but the cold guide plate taking-out handle does not adopt a traditional handle, but adopts a newly designed single-hand pinching type handle, and the attached figures of the detailed description are included. The connector completely adopts an aviation connector, and adopts a design of multiple aviation connectors so as to meet the requirement of simultaneously inputting multiple paths of video data with different formats;
2. the memory card adopts a structure of two 2.5-inch disks, so that the two 2.5-inch disks are structurally a cold guide structure body, the capacity and the access rate are improved, and the capacity of the memory card reaches more than 4 TB;
3. the video acquisition card simultaneously adopts a plurality of video acquisition chips, and finishes the protocol conversion of a plurality of video formats through the FPGA, so that the video acquisition card simultaneously supports video compression formats and interfaces such as PAL, HD-SDI, SMPTE292M, Camera Link, H.265, JPEG2000, synchronization 422 and the like;
4. the physical destroying function is added in the memory card, so that the requirement of destroying data in emergency is met.
5. The structure satisfies military industry environmental suitability requirement, adopts self-defined cold conduction structure, and the machine of being convenient for carries the installation. The storage module is provided with an independent plugging structure, so that tool-free rapid plugging can be realized on the case, and the separation design of the storage body and the acquisition module is realized;
6. in order to solve the problem of high-speed and high-capacity storage of multi-path video data, the patent specially designs a scheme for storing data by a plurality of paths of SATA interfaces in parallel, and distributes the data through an FPGA (field programmable gate array), thereby avoiding the defects of low single-channel storage bandwidth and small capacity of the traditional video storage module.
Drawings
FIG. 1 is a schematic structural diagram of a video capture and storage system chassis of the present invention 1;
FIG. 2 is a schematic structural diagram of a video capture and storage system chassis of the present invention 2;
FIG. 3 is a schematic structural diagram of a video capture and storage system chassis of the present invention, FIG. 3;
FIG. 4 is a schematic structural diagram of a video capture and storage system chassis of the present invention 4;
FIG. 5 is a schematic diagram of a memory card configuration 1;
FIG. 6 is a schematic view of a memory card configuration 2;
FIG. 7 is a schematic view of a memory card handle configuration;
FIG. 8 is a schematic block diagram of a video capture storage system of the present invention;
FIG. 9 is a schematic block diagram of a video capture card;
fig. 10 is a functional block diagram of physical destruction;
FIG. 11 is a schematic diagram of a memory card data erase function;
FIG. 12 is a schematic diagram of a video capture card implementing a full disk data erase function.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 to 4 are structural diagrams of a video capture and storage system chassis. The chassis adopts a cold conduction structure, naturally radiates heat, and the connector of the board card is in a waterproof design. The storage card part of the case can be pulled out without tools, a waterproof rubber pad is arranged at the interface of the storage card and the case, and a spring is arranged between the storage card and the acquisition board, so that the storage card can be conveniently popped out when being pulled out. The aviation connector and the destruction button are arranged at the rear part of the case, and two 28V power interfaces are arranged. The front panel adopts the quick detach design, makes things convenient for the storage card to extract.
Fig. 5 to 6 are memory card structure diagrams, which adopt a pluggable design, and are a combination of two SATA disks, and have two SATA interfaces, and a sealing waterproof gasket is designed at the interface between the panel and the chassis, and the red portion of the handle is a quick tool-free dismounting device, and the memory card can be ejected by inward pinching of two fingers. Supporting a double pin-out function.
Fig. 7 is a schematic structural diagram of a handle of a memory card, and two pinch buttons are arranged in the middle of the handle.
Fig. 8 is a schematic block diagram of a video capture storage system. The video acquisition and storage adopts the design of separating a memory card and a video acquisition card. The memory card part adopts 2 pieces of 2.5 inches SATA disks (supporting double-pin destruction function), structurally integrates, outputs two standard SATA ports, and adopts a pluggable design. The drawn out memory card part can be connected with the SATA interface of the computer and can also be connected with the USB interface for transferring data through a SATA USB data line. The 2.5-inch SATA disk destroys and triggers NAND FLASH on the memory card to be physically destroyed through the single-chip microcomputer controlling the 28V power-on sequence and the power-on pulse, the 28V destroying power supply adopts a special destroying power supply and is isolated from a working power supply, and meanwhile, the 2.5-inch SATA disk also supports the intelligent destroying function, namely, the data is erased by one key; the acquisition card part is fixed in the case and is connected with an aviation connector on the case. Two SATA interfaces output by the acquisition card are respectively in data exchange with 2 solid SATA storage disks, a 28V destruction power supply is designed on the acquisition card and is used for SATA disk destruction, the video acquisition is carried out by adopting a special chip, interface conversion and protocol conversion are completed in an FPGA, and digital signal processing is completed in a DSP. Video data adopts a shunting strategy, two camera link videos are respectively stored in different SATA disks, an HD-SDI video and a PAL video are also respectively stored in different SATA disks, and one gigabit Ethernet is used for video playback.
FIG. 9 is a schematic block diagram of a video capture card. The system is based on an FPGA + DSP + acquisition chip architecture, and data interfaces such as PAL, HD-SDI, Camera Link, RS422 and the like are input through an aviation connector. The destruction triggering of the storage disk is designed on the video acquisition card, and after the destruction triggering is triggered, a 28V destruction power supply is controlled by a single chip microcomputer on the video acquisition card, and the frequency, the power-on time and the sequence of the destruction power supply are controlled. The video capture card meets the following indexes and functions:
1) analog video recording interface: 1 PAL, adopting H.265 to compress and store;
2) digital video recording interface: the 2-path HD-SDI interface supports SMPTE292M, has a frame rate of 25/30fps and adopts H.265 compression storage;
hardware interface: the interface specification of the transmission under the signal rate condition of 1.485Gb/s or 1.485/1.001 Gb/s. The specification specifies data formats, channel coding schemes, signal specifications for coaxial cable interfaces, connector and cable types, fiber optic interfaces, and the like. The HD-SDI interface adopts a coaxial cable, and takes a BNC interface as a cable standard.
A connector: BNC interface
Transferring the HD-SDI chip for inputting HD-SDI to FPGA
Inputting: 2-way HD-SDI
Level: 1.2v
Outputting to an FPGA: RX0 RX5 RXCLK I2C SBM _ CS with H.265 compressed storage
3) An image recording interface: 2 Camera Link (Medium) paths, using JPEG2000 lossless compression;
hardware interface: the highest data transfer rate supported by the root Camera Link standard can be up to 680 Mb/s. The Camera Link standard also provides a bi-directional serial communication Link. The image card and the camera can communicate through the camera, and a user can complete the setting and the changing of hardware parameters of the camera by sending corresponding control instructions from the image card, so that the user can conveniently control the camera in a direct programming mode
Inputting Camera Link and transferring the Camera Link chip to FPGA, VCC is 3.3V, not higher than 185 deg.C, and speed is 2.38Gbps
Inputting: 2-way Camera Link
Level: 1.2v LVTTL
Outputting to an FPGA: D0D 23, FVAL, LVAL, DVAL, spare, Clkout compressed storage with H.265
4) A data recording interface: 3-way synchronous 422 interface;
hardware interface: the highest data transmission rate supported by the 4-group RS422 standard may be up to 10 Mb/s. Normally only 1Mb/S
The input RS422 is transferred to FPGA by 422 chip, two RS422 paths are at-40-85 deg.C
Inputting: 4 way RS422
Level: 1.2v LVTTL
Outputting to an FPGA: D0D 23, FVAL, LVAL, DVAL, spare, Clkout compressed storage with H.265
5) A playback interface: a gigabit Ethernet port;
the gigabit Ethernet PHY chip supports the standards of 1000BASE-T, 100BASE-TX and 10 BASE-T; conforming to the IEEE802.3 standard.
6) Marking function: the time information can be annotated on the video image;
7) asynchronous RS422 interface: 1-way full duplex, baud rate: 115200;
8) writing speed: the continuous writing speed is more than or equal to 500 MB/s;
9) fast unloading is supported, and the fast interface rate is more than or equal to 600 MB/s;
the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A multi-format video acquisition storage system with a storage card and a video acquisition card separately designed comprises a case, the video acquisition card and the storage card, and is characterized in that:
the case provides a physical carrier for the system, a cold conduction structure is adopted, and the video capture card is fixed in the case and connected with an aviation connector on the case;
the storage card adopts at least 2 SATA disks which are structurally integrated, adopts a cold guiding structure, adopts a cold guiding plate handle which can be pinched by a single hand, outputs at least two standard SATA ports, adopts a pluggable design to be separated from the video acquisition card, and can be pulled out from a chassis to realize video data dump;
the SATA disk has a destroying function, the destroying triggering controls the power-on sequence and the power-on pulse physical destroying of data on the memory card through the single chip microcomputer, and the destroying power supply adopts a special destroying power supply and is isolated from the working power supply;
the video acquisition card is based on the framework of FPGA + DSP + acquisition chip, various video acquisition chips are adopted, interface conversion and protocol conversion are completed in the FPGA, digital signal processing is completed in the DSP, at least two paths of SATA interfaces are output by the video acquisition card to respectively perform data exchange with at least 2 SATA storage disks, and a destruction power supply is designed on the video acquisition card and is used for the SATA disks to be destroyed; video data adopts a shunting strategy, and videos are respectively stored in different SATA disks.
2. The multi-format video capture and storage system of claim 1, wherein the storage card is separated from the video capture card and is characterized in that: adopt at least 2 SATA dishes, wherein SATA dish is 2.5 cun SATA dish.
3. The multi-format video capture and storage system of claim 1, wherein the storage card is separated from the video capture card and is characterized in that: adopt the cold board handle of leading that one hand can be got, wherein be provided with in the middle of the handle and hold between fingers the button.
4. The multi-format video capture and storage system of claim 1, wherein the storage card is separated from the video capture card and is characterized in that: the SATA disk has an intelligent destruction function at the same time, namely, all data are erased by one key; each SATA interface connector on the memory card is provided with an input pin, when the pin is pulled down for a certain time, the pin is considered to receive a destruction command, and all data in the memory particles are erased after the destruction command is received.
5. The multi-format video capture and storage system of claim 4, wherein the storage card is separated from the video capture card, and the system comprises: the pin is pulled down for a certain time, wherein the certain time is 1 second.
6. The multi-format video capture and storage system of claim 4, wherein the storage card is separated from the video capture card, and the system comprises: a mechanical switch and an open collector or open drain circuit are arranged outside the video acquisition and storage system and serve as a data destruction function trigger interface; in the destruction function design, the function keys are all arranged on the video acquisition card, the destruction pin wire of the SATA disk and the GPIO of the FPGA end of the video acquisition card are connected with the input end of the AND gate chip, the output end of the AND gate chip is connected with the NPN triode to carry out FLASH full-erasing control, and the FPGA control is adopted to prevent mistaken erasing.
7. The multi-format video capture and storage system of claim 1, wherein the storage card is separated from the video capture card and is characterized in that: two camera link videos are respectively stored in different SATA disks, an HD-SDI video and a PAL video are also respectively stored in different SATA disks, and one path of gigabit Ethernet is used for video playback.
8. The multi-format video capture and storage system of claim 1, wherein the storage card is separated from the video capture card and is characterized in that: the video acquisition card is provided with a destruction power supply, wherein the destruction power supply is a 28V destruction power supply.
9. The multi-format video capture and storage system of any one of claims 1 to 7, wherein the memory card is designed separately from the video capture card, and the system comprises: the video acquisition card runs with video acquisition control software, and the software is used for carrying out operation control on video interface conversion, video dump and system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247724A (en) * | 2021-11-10 | 2022-03-29 | 山东盖特航空科技有限公司 | System and method for destroying Flash chip by multi-pulse impact |
| CN115514941A (en) * | 2022-09-02 | 2022-12-23 | 苏州智行众维智能科技有限公司 | GMSL2 video bidirectional synchronous splitter |
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| CN115514941B (en) * | 2022-09-02 | 2024-01-30 | 苏州智行众维智能科技有限公司 | GMSL2 video bidirectional synchronous shunt |
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